With Rails in a constant state of evolution, it’s important for its users to help each other stay in step with what’s current. To that end, Conor Hunt has created Rannotate, a system for collaboratively annotating RDoc-generated documentation.

He’s gone a step further and posted Rannotate instances for both Rails and Ruby.

Read, post, learn, and teach. At critical mass, Conor’s service could provide a huge benefit to the community. Coupled with Kevin Clark’s Rails documentation crusade, things are looking better and better on the documentation front.